Im just as ignorant as you about it. The quantum part to me doesnt seem to matter. I don't see why its any fundamentally different from making a computer out of

Im just as ignorant as you about it. The quantum part to me doesnt seem to matter. I don't see why its any fundamentally different from making a computer out of any other substrate. Light, sand, chemicals, at the end of the day you compute a function by following a set of steps which may or may not have constraints of seriality. I think von neumann cant handle purely parralel algorithms efficiently. Even gpus. I think thats whats where the "all qbits interacting simultaniously for n steps after being put in initial conditions" is about. Its purely parralel. It could be the case that information cant be extracted before it is computed, and that for some algorithms the peak efficiency serial version is equal to the best efficiency purely parralel version. It could also be the case thats not true and that classes of quantum algorithms could be better. At the end if the day the way i see it substrate is just an engineered means of applied ops per time.